Wilhelk bobee-t itg-g-la aed gtjbnitas



Apr.. 24, 1923.. www

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TooTHmD WHEEL Filed Feb. 2l'. 18.921

W l Wlw TTHED "WEELEEL Application. tiled February 2, 'i5-wl..

lil tf1/1,0m it me@ con oem f l it known that We, lllliiirrnis" lionnri'r 'i sind (Vitrinen ritiene, fiminine lllhiniennin subjects of the King of residingv et lfiopnizingotzin et and lliyifliogait-en respon/ti,y lj the llt'ngnloni ot flivedeifn herve invented oertziin new end useful improvements in 'lloothed "liv/heels, oit which the tolloiving is si specilicotion.

'lhis invention relates to toothed `Wheels ot that type, in .vh ich the teeth provided on riin, which is rotatably rnonnted on e guide? forniied by the spokes opi the vv'heei end is connected with the hub ot the Wheel by plete springsj so thet the rim een yield subjected to sudden leeds und the Wheeh nfiounted in a gearing eonipi-ising,w two or ai pinrelity ot wheels, indy, by rotating the rim, be brought into the proper inesh With the Wheel, cooperating ,vith the seine. fte- @ordinii` to the present invention. obntnients eo-operzite with the spokes, litting` loosely to the rini, which cooperate with the seid pletesprings tor positively liinitinfgl the relative nioveinent between the riin end the hub o'l the Wheel and thus preventingthe springs troni being` overiooded. Preferably the spokes :ire rendered soineivhet jfieldsble, so that the interruption ot the relative move nient between the riin end the hub is et tected sottly. it -further characteristic :teetnre of the invention consists in the toot-hed rim being movable' axially on the spokes oerrying the rim. This arrangement is importent especially in gearings having two or n plurality oi wheels, which ere provided with teeth forming on angle with eeoh other, ow ing to the inet that by shittingthe riin peripherieelly es Well es axially the Wheels in all peirs oitl Wheels ine-y be broi mesh properly with each other notv only periphericelly but also iaxially, even it there exist tenlts in the mounting; ete.

,in the iceornpenying1 drawing Fig. il. shows in n. longitndinnl vertical section, psrtiiilly in s side view `end es en illnstrstf in ot the applying; oit the invention, on electr" motora, in which o gearing between the drive ing slniitt end the driven shn'tt is provided9 having toothed Wheels erronged in aoeordence with this invention. Fig. 2 is o section on the line 2--2 oi Fig. l. in the gearing shown in the diewingt4 `which gearing; is adapted to reduce the nninber ot revolutions 'h I l olor i ai.

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and indy be used also in turbines and the line. the teeth oit the Wheels forni en angle with erich other, whieh is niost suitable in such gearings.

l`he electric motor is not particularly describedu es it tney be ot any known or suitnbie eonstriiiction. l. is the sheiit ot' the niotor7 running' in boli bearings 2 provided in the freine or ycasing- (in the shalt l. ion i is tixed provided with angular p 'lhroe toothed wheels 5 mesh with the seid pinion 47 esoh being1 lined to the seme spindles G :is the pinions 7 respeetively. rl"he seid spii die (i iournelled in boil bearings Si one' 9 proi'fided in the 'freine ond o easing` le .tined to the ssinie. rllhe pinions Y, which ilse have angular teeth, mesh with :i coinnion toothed wheel ll, which is lined to the driven. sho.; L33, running` in bell bearings l2. The oblique teeth ot ill the seid Wheels and pinions r Jspeotively ere provid d on rims seperated troni one ianother. ln the gearing shown in the drawing the spokes lei entending trein the hubs oi. the Wheels 5 `ire "l"- shaped eind the riins l5 niovsbie periphericelly on the spolres centering; the seine. The

eid rirns l5 l@fre connected viith the hub by plete springs tizred in grooves in the hub :ind extending;r et their outer ends freely into grooves irovided in the inner side of the riins i5. ieccrding to this invention the erins oft the l""lshziped spolres lll entend to the vicinity of the springs lo. rEhe distance between the outer ends ot the seid arms and the springs respectively is so adopted, that the Wheels yield only Within certain lin'iits. rllhis is of importance in enses. in which ovrnloe.ding ot the springs is to be iesred. rilhe rinis then yield only until the springs i6 strilre or corne into Contact with the arms oi the spolres lll. Overload of the springs is thereby 'lnlly ynfevented7 ttor which reason their durability is not jeopnrdized. Conso* oniently in the selection ot springs regard may be paid only to their capacity oit sustaining the norrnnl lood. lpolres illere pretarzibly rendered somewhat yieldebie, so that the arresting` oi'I the rinis l5, ns the sprin ogs l@ corne into oontsct with the spokesc is e oted softly. Vlihe invention may be applied nlso to toot-hed wheels having straight teeth provided on e.4 single rino end also to toothed Wheels, in which the spokes are connected ith the rini and beer loosely on the hui side of the rims.

If at the mounting 'of the wheels, during which operation the teeth of the pinions 7 for instance are first fitted to the teeth of the wheel l1 and then the'wheels 5 to the pinion 4, theteeth of one or more of the wheels 5 are not in the proper position with relation to the teeth of the pinion 4 peripherically, the rims 15 of the said wheels may, owing to the described arrangement of the wheels 5, be so rotated, that the teeth occupy the proper position peripherieally. Owing to the fact, however, `that the toothed wheel 5 is fixed to the same shaft 6 as the pinion 7, it may happen that the wheel 5 has not the proper position axially with relation to the pinion 4, for which reason the teeth of the wheel 5 and the pinion 4 do not properly mesh with each other after the said rotation of the rims 15. For the removing of this disadvantage the rims 15 according to this invention are movable axially on the spokes 14 or the guide of the rims. During the axial l'movement of the rims the springs 16 slide in the grooves provided in the inner The teeth of the rims have such position, that the rims are actuated toward one another by the pressure exerted by the teeth of the wheel co-operating with the same.

Owing to the fact that the rims 15' are shiftable peripherically as well as axially the teeth of the rims 15 may be brought exactly into the proper position with relation to the teeth of the pinion 4. Consequently,

vall wheels of the gearing may be brought quiet manner. In each of the double gear ings 4, 5, 7, 11 the rims of only one of the wheels must be arranged as described.

The invention may, evidently, be modified in some or other respects, without exceeding the limits of the same.

Ve claim:

1. In a toothed wheel, a hub, spokes extending outwardly from said hub, a rim rotatably mounted on said spokes and pro vided with slots in the inner side thereof, springs lixed to said hub between said Spokes and extending into said slots, and abutments provided on the spokes normally spaced from said springs and cooperating with the springs for positively limiting the relative Inoveinnt between the rim and hub.

2. In a toothed wheel, a hub providedf with outwardly extending spokes, a rim ro tatably guided by the spokes and provided with axial slots on the inner side thereof, and plate springs firmly connected with the hub and Vfreely extending into said slots, the said slots having such length that the rin'i may be adjusted axially.

In a toothed wheel, a hub, spokes extending from said hub and having op ositely disposed circumferentially extending abutments, a rim rotatably mounted on said spokes and abutments and provided on its inner side with spaced slots, and plate springs arranged between said spokes. extending from said hub and engaging said slots, the outer ends of said springs normally occupying positions midway between and spaced from adjacent abutments.

In testimony whereof we have afiixed our signatures in presence of two witnesses.

WILHELM ROBERT UGGLA. GUNNAR AUGUST FERDINAND WALLGREN.

Witnesses INEZ SWENsoN, STINA LARsoN. 

